世界上的一些农村仍遭受着很多问题，如糟糕的道路条件，破旧的厕所，肮脏的环境，以及发展不完善的公共基础服务等。
Some villages in the world still suffer from problems such as poor road conditions, shabby toilets, dirty environment, and undeveloped basic public services.
可以说，相对于我国海上责任保险实践的蓬勃发展，相应的法律规范以及法律理论研究越来越显示出不完善的一面。
In other words, compared with the thriving development in the practice of Marine liability insurance, the legal rules and concerned studies of legal theories become increasingly imperfect.
但是在良好的发展前景下，老年旅游也存在着利润低、相关法律政策还不完善、老年游客对服务的要求较高等问题。
However, in such a good development prospect, the aged tourism is in lower profits, relevant laws and policies is not perfect, the aged tourist services demanding on issues, etc.
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